The following
information is sourced from the "Atlas of Technical Data"
(revised edition March 1981) issued by the South Australian Department
of Mines and Energy (SADME). The publication includes index maps
and listings of the earliest aeromagnetic surveys in South Australia.
The contracts flown by Adastra are highlighted on the maps and
listed in the following tables.
(Click
on map for a larger image)

Map 1:
Government Regional Surveys
No
|
For |
When |
Spacing |
Direction |
Altitude |
1
|
SADME |
flown
1955 |
1.6km |
E-W |
300
meters baro |
2
|
SADME |
flown
1955 |
1.6km |
NW-SE |
460
meters baro |
3
|
SADME |
flown
1955 |
1.6km |
N-S |
150
meters AGL |
4
|
SADME |
flown
1957 |
1.6km |
E-W |
150
meters AGL |
5
|
SADME |
flown
1956 |
1.6km |
E-W |
460
meters AGL |
6
|
SADME |
flown
1956 |
1.6km |
E-W |
150
meters AGL |
7
|
SADME |
flown
1956 |
6.4km |
E-W |
150
meters AGL |
8
|
SADME |
flown
1956 |
1.6km |
E-W |
150
meters AGL |
9
|
SADME |
flown
1956 |
1.6km |
E-W |
150
meters AGL |
10
|
SADME |
flown
1957 |
1.6km |
E-W |
150
meters AGL |
19
|
SADME/BMR |
flown
1963 |
3.2km |
E-W |
460
meters AGL |
Map 2:
Private Company Regional Surveys
No
|
For |
When |
Spacing |
Direction |
Altitude |
2
|
Murray
Basin Oil |
flown
1955 |
6.4
& 12.8km |
E-W |
910
meters baro |
5
|
Exoil |
flown
1964/5 |
2.4
& 16.0km |
N-S |
610
& 760 meters baro |
Note:
No 9 (marked in green on the map) was flown by CGG of France for
Hematite/BHP. The offshore area was flown in 1968 using East-West
Airlines DC-3 VH-PWM.
Map 3:
Low Level Aeromagnetic Surveys for Government
No
|
For |
When |
Spacing |
Direction |
Altitude |
a
|
SADME |
flown
1956 |
0.4km |
E-W |
90
meters draped |
b
|
SADME |
flown
1960 |
0.4km |
N-S |
90
meters AGL |
c
|
SADME |
flown
1960 |
0.8km |
N-S |
90
meters AGL |
d
|
SADME |
flown
1960 |
0.8km |
E-W |
90
meters AGL |
e
|
SADME |
flown
1960 |
0.8km |
NE-SW |
90
meters AGL |
There were
possibly other aeromagnetic surveys flown by Adastra in South
Australia for commercial customers (rather than government departments
or commercial companies seeking government assistance) that have
not made nor ever will make such lists.
Doug
Morrison
17 October 2006
|